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Ò».ÏÂÔØJDK
1.µÇ¼SunµÄJDK¹Ù·½ÏÂÔØÍøÖ·:http://java.sun.com/javase/downloads/index.jsp
2.ÏÂÔØjdk-1_5_0_07-linux-i586-rpm.binÎļþ
 
¶þ.°²×°JDK
1.Ôö¼Ójdk-1_5_0_07-linux-i586-rpm.binÎļþµÄ¿ÉÖ´ÐÐȨÏÞ
#root> chmod 755 jdk-1_5_0_07-linux-i586-rpm.bin
2.Ö´ÐÐjdk-1_5_0_07-linux-i586-rpm.bin
#root> ./ jdk-1_5_0_07-linux-i586-rpm.bin
3.°²×°PRM°üÎļþ
#root> rpm -ivh jdk-1_5_0_07-linux-i586.rpm
 
Èý.ÅäÖû·¾³±äÁ¿PATH,JAVA_HOME,CLASSPATH
ÅäÖû·¾³±äÁ¿ÓÐÈýÖÖ:
1.ÐÞ¸Ä/etc/profileÎļþ(ϵͳÓÐЧ)
(1)#root > vi /etc/profile
(2)ʹÓÃVI±à¼­Æ÷ÔÚprofileÎļþÖÐÌí¼ÓÒÔÏÂÓï¾ä:
JAVA_HOME=/opt/jdk1.5
PATH=¡çJAVA_HOME/bin:¡çPATH
CLASSPATH=.¡çJAVA_HOME/lib/dt.jar:JAVA_HOME/lib/tools.jar export JAVA_HOME,PATH,CLASSPATH
(3)ÖØÐµÇ¼
 
[×¢Òâ]
<1>LinuxÏ»·¾³±äÁ¿Ê¹ÓÃ:·Ö¸ô·¾¶£¬²»Í¬ÓÚWindowsϵģ»
<2>LinuxʹÓÃ(¡ç+»·¾³±äÁ¿Ãû)À´ÒýÓÃÔ­À´±äÁ¿µÄÖµ,WindowsÔòÊÇʹÓÃ%+»·¾³±äÁ¿Ãû+%.±ÈÈç¡çPATHºÍ%PATH%
<3>CLASSPATHÖв»ÄÜ´æÔÚ¿Õ¸ñ£¬ÈçWindowsϵÄC:\Documents and Settings\seagar\jdk1.5½«ÊDz»ºÏ·¨µÄ·¾¶Ãû
<4>CLASSPATHÖеĵ±Ç°Ä¿Â¼"."²»ÄܺöÂÔ
<5>export°Ñ»·¾³±äÁ¿µ¼³öΪȫ¾Ö±äÁ¿
<6>´óСдÑϸñÇø·Ö
 
2.ÐÞ¸Ä.bashrcÎļþ(¸öÈËÓû§ÓÐЧ)
(1)#root > vi /home/seagar/.bashrc
(2)ʹÓÃVI±à¼­Æ÷ÔÚ.bashrcÎļþÖÐÌí¼ÓÒÔÏÂÓï¾ä:
JAVA_HOME=/opt/jdk1.5
PATH=¡çJAVA_HOME/bin:¡çPATH
CLASSPATH=.¡çJAVA_HOME/lib/dt.jar:JAVA_HOME/lib/tools.jar
export JAVA_HOME,PATH,CLASSPAT
3.Ö±½ÓÔÚshellÐÞ¸Ä(µ±Ç°ShellÓÐЧ)
export JAVA_HOME=/opt/jdk1.5
export PATH=¡çJAVA_HOME/bin:¡çPATH
export CLASSPATH=.¡çJAVA_HOME/lib/dt.jar:JAVA_HOME/lib/tools.jar
 
ËÄ.²âÊÔ°²×°Çé¿ö
1.java -version²é¿´°æ±¾ºÅ
2.ʹÓÃVI±à¼­Æ÷±àдһ¸öJava³ÌÐò
(1)#root > vi Hello.java
(2)±àд³ÌÐò
public class Hello
{
     public static void main(String[] args)
     {
          System.out.println("Hello");
     }
}
3.±àÒë:javac Hello.java
4.Ö´ÐÐ:java Hello


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